Symptoms.—Staring coat; lungs or air-passages always affected; flesh fades; glands swell; spirit low; appetite bad. A lymphatic gland adheres to the inside of the jaw; the membrane inside the nose ulcerates; a slight discharge from one nostril. This becomes thicker, and adheres to the margin of the nostril, exhibiting white threads and bits of mucus; then it changes to a full stream of foul pus; next the nasal membrane grows dull and dropsical; the margins of the nostrils enlarge; the horse breathes with difficulty; the discharge turns discolored and abhorrent; farcy breaks forth, and the animal dies of suffocation.
Treatment.—There is no known cure.
GREASE.
Causes.—Age; debility; excessive labor; neglect; filth. Cutting the hair off the heels; turning out to grass in the cold months.
Symptoms.—Scurfiness and itchiness of the legs. Rubbing the leg with the hoof of the opposite limb; hairs stand on end; moisture exudes, and hangs upon the hairs in drops. Smells abhorrently; lameness; cracks on the skin; swelling; ulceration; thin discharge; odor worse. Lameness increases; leg enlarges; granulations sprout in ragged bunches; their points harden and become like horn; pain excessive; horn of hoof grows long.
Treatment.—Cut off all remaining hair. If hot and scurfy, cleanse with mild soap and hot, soft water; saturate a cloth with the following lotion: Animal glycerin, half a pint; chloride of zinc, half an ounce; water, six quarts. Lay it upon the leg. When this cloth becomes warm, remove it, and apply another, also wet with the lotion; thus continue applying cool cloths to the limb till the heat abates; afterward moisten the leg thrice daily. When cracks and ulceration are present, adopt the wet cloths; but subsequently use one of the following to the sores: Permanganate of potash or phosphoric acid, one pint; water, six quarts. Or, chloride of zinc, one ounce; water, one gallon: employ thrice daily. If the granulations have sprouted, remove them with a knife, in three operations, (full directions are given in the book;) likewise always place in a loose box. Feed liberally; allow old beans; give a handful of ground oak-bark with each feed of oats. Night and morning exhibit liquor arsenicalis, one ounce; tincture of muriate of iron, one ounce and a half; porter or stout, one quart: one pint for the dose. Chopped roots; speared wheat; hay tea; cut grass, and exercise are all good for grease.
GUTTA SERENA.
Cause.—Over-exertion.
Symptoms.—Fixed dilatation of the pupil; a greenish hue of the eye; total blindness. Active ears; restless nostrils; head erect; high stepping; occasionally a rough coat in summer and a smooth coat in winter.